June 1, 2010

Web sites like Facebook, Twitter and Yelp have given individuals a global platform on which to air their grievances with companies. But legal experts say the soaring popularity of such sites has also given rise to more cases like Mr. Kurtz’s, in which a business sues an individual for posting critical comments online.

The towing company’s lawyer said that it was justified in removing Mr. Kurtz’s car because the permit was not visible, and that the Facebook page was costing it business and had unfairly damaged its reputation.

Some First Amendment lawyers see the case differently. They consider the lawsuit an example of the latest incarnation of a decades-old legal maneuver known as a strategic lawsuit against public participation, or Slapp.

The label has traditionally referred to meritless defamation suits filed by businesses or government officials against citizens who speak out against them. The plaintiffs are not necessarily expecting to succeed — most do not — but rather to intimidate critics who are inclined to back down when faced with the prospect of a long, expensive court battle.